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How many pairs of sex chromosomes are found in the human cell?
Differentiate: Autosome and Sex Chromosome
Differentiate: Mitosis and Meiosis
Differentiate: DNA and RNA
Differentiate: Haploid and Diploid
What is a chromosome made up of?
What is the main function of sex chromosomes?
What is the smallest unit of the chromosome that helps in the transmission of hereditary characteristics?
Which of the following statements is correct for mitotic cell division?
A technician working in a radiotherapy laboratory was tested after a long time of marriage when there was no childbirth. After the test, it was found that his child production capacity was reduced because he worked in high-intensity radiation for a long time. Which part of the cell is affected in this case?
If there is no DNA transcription in a cell, which process is affected?
If a nulceotide is destructed during DNA replication, what happens to the organism?
Which of the following indicates the set of chromosomes in a cell of a woman?
Which of the following statements is true?
Offspring have the same characteristics as their parents. Explain.
The male has a main role in the determination of sex. Give reason.
Though males have both X and Y chromosomes, some of them have only male or only female kids. Why?
Meiotic cell division is also called reductional cell division. Why?
Mitotic cell division is also called equational cell division. Why?
Sexual reproduction is impossible without meiotic cell division. Why?
Meiotic cell division brings variation. How?
Two black guinea pigs mated and the off-springs born were 3 black and 1 white guinea pigs. What is the genotypic ratio?
State any two significances of meiosis cell division.
Explain about monohybrid cross making a filial chart showing the result obtained by cross-pollination followed by self-pollination of the rounded seeded pea plant and wrinkled seeded pea plant. What is the phenotypic ratio in the second filial generation?
What is a gene?
What is a chromosome? Clarify the role of chromosomes in the body of living beings.
Explain the importance of mitotic cell division in the growth and development of the body.
Explain the role of mitosis and meiosis in the reproduction of organisms.
What will happen if meiotic cell division does not occur in the reproductive cell of an organism? Explain.
Clearly explain the role of genes in the transmission of hereditary characteristics in organisms.
How is sex determined in humans? Explain with a chart.
A woman is pregnant. What is her probability of giving birth to a daughter? Write in percent.
A couple gave birth to only a son. Does it mean that the testes of those male-produced sperm share Y-chromosomes only?
Differentiate: Dominant characters and Recessive characters
Differentiate: Phenotype and Genotype
Differentiate: Interbreeding and Crossbreeding
Differentiate: Artificial Insemination and Invitro Fertilization
Differentiate: Tigon and Liger
Children look like their parents, but not exactly the same. Give reason.
Mendel selected pea plants for his experiment. Give reason.
When tall pea plants and dwarf pea plants are cross-pollinated, tall plants are produced in the first filial generation. Give reason.
When self-breeding is done between hybrids, different types of offspring are produced. Give reason.
DNA Testing is a reliable technique for criminal investigation. Explain.
Genetic engineering involves the detailed study of DNA. How?
Offspring produced by cross-breeding may be sterile. Explain.
Special attention should be given to collecting samples for DNA testing. Give reason.
What is genetics?
What is DNA testing? For what purposes is it used?
Give some examples of genetic technology.
Mention the importance of DNA in genetic technology.
Explain the importance of genetic engineering.
What is a monohybrid cross?
Show in the filial chart, the result obtained by cross-pollinating first and then self-pollinating a red flowering pea plant and a white flowering pea plant.
Explain with an example that Mendel's experiment can be done not only in plants but also in animals.
Explain Mendel's law of dominance in heredity.
Explain Mendel's law of purity of gametes in heredity.
Round-seeded pea plants and wrinkle-seeded pea plants are cross-pollinated first and then the offspring obtained are self-pollinated again. The result of the second filial generation is shown in the table below. Now, answer the following questions:
-----------
| R | r
R | RR | Rr
R | Rr | rr
-----------
- What is the ratio fo plants showing dominant and recessive characters?
- Write the genotypic and phenotypic ratio of this generation.
- Among them, which plant is purely round-seeded? Why?
When a cross is made between a black guinea pig and a white guinea pig, the offspring of the first filial generation are all black. Explain why white guinea pigs did not appear in this generation.
A teenage girl who has lost her mental balance became the victim of rape and gave birth to a child. How can the father of the child be detected?
The district animal development centre conducted a camp to fertilize many cows at once. Which technique did that organization adopt at that time? Explain this technique in brief.
Is genetic engineering a boon or a bane for the present era? Give your arguments.
How has AI technology helped to bring happiness to the farmer? Explain.
IVF is proved to be a boon for childless couples. Justify this statement.
What is heredity?
What is the main function of a gene?
Where are genes located?
Who is considered as the father of genetics?
What is dominant characteristic?
What is recessive characteristic?
Define phenotype.
Define genotype.
What is a dihybrid cross? Give one example.
What is a hybrid organism?
Write any two recessive characteristics seen in human beings.
What is variation?
How many characters of pea plant had Mendel selected for his experiment?
How many pairs of chromosomes are there in human somatic cell?
Why did Mendel not select mustard plant for his experiment? Mention any two points.
How do the chordates without vertebral column link the classification with evolution of organism? Mention any two points.
Different types of cell division are shown in the diagram:
- Which of them can form gametes?
- Which of them forms daughter cells having identical characteristics of mother cell?
- Write an importance of figure A.
- Which of them helps to make number of chromosome similar to mother cell in sexual reproduction?
Which of the following is the diploid chromosome number of human being?
Write any two differences between autosome and sex chromosome.
Similar stages of different types of cell division are shown in the diagram. If there were four chromosomes in the mother cells.
- Which of them can form gametes?
- Which of them forms daughter cells having identical characteristics of mother cell?
- Write an importance of figure A.
A fact and two statements related with genetics are given below.
Fact: In vitro fertilization is a process of fertilization where an egg is combined with sperm in a glass vessel and then it is transferred in mother's uterus.
Statements:
- Sperm is not needed for this process
- Surrogate mother can grow the embryo in her uterus.
Write the full form of RNA.
Define monohybrid cross and phenotype.
What is the number of chromosome in reproductive cell of human?
What type of offsprings will be formed in first filial generation when black (Bb) and brown(bb) rabbits are crossed?
What would happen if Mendel used bottle gaurd seeds instead of pea seeds for his experiment? Write any two difficulties.
The given passage was published digitally by Nepal fertility centre on 11 August 2023:
The process begins with ovarian stimulation, where fertility medications are administered to stimulate the ovaries to produce multiple eggs....... Next, the retrieved eggs are fertilized with sperm in a controlled laboratory environment. ........ the most viable ones are selected for transfer into the woman's uterus.
- What type of couples the technology mentioned in the article advantageous for?
- Show the steps of the above process in a flow chart in sequential order.
- Is the technology in access of most of the Nepalese? Explain.
When a red flowered pea plant (RR) crossed with the white flowered pea plant (rr) in F, generation, all plants are found red flowered. What type of character is red?
Genetic technology is boon for human beings, justify this statement in two points.
After the cross-fertilization between long winged (LL) and short winged (ll) drosophila upto 2$^{nd}$ generation were studied. A part of the study is given in the table alongside.
| L | l | |
| L | LL | Ll |
| l | lL | ll |
- What type of characters were there in the parents of the offspring shown in table?
- Write genophytic ratio of this generation?
- In the drosophila having Ll, there are the factors of both the characters but only one character is expressed. Clarify the cause.
- Draw a chart for offspring obtained by crossing between the drosophila of hybrid and the recessive character.
Who is the father of Genetics?
What is the full from of RNA?
How many pairs of sex chromosomes are found in the human cell?
Differentiate: Autosome and Sex Chromosome
Differentiate: Mitosis and Meiosis
Differentiate: DNA and RNA
Differentiate: Haploid and Diploid
What is a chromosome made up of?
What is the main function of sex chromosomes?
What is the smallest unit of the chromosome that helps in the transmission of hereditary characteristics?
Which of the following statements is correct for mitotic cell division?
A technician working in a radiotherapy laboratory was tested after a long time of marriage when there was no childbirth. After the test, it was found that his child production capacity was reduced because he worked in high-intensity radiation for a long time. Which part of the cell is affected in this case?
If there is no DNA transcription in a cell, which process is affected?
If a nulceotide is destructed during DNA replication, what happens to the organism?
Which of the following indicates the set of chromosomes in a cell of a woman?
Which of the following statements is true?
Offspring have the same characteristics as their parents. Explain.
The male has a main role in the determination of sex. Give reason.
Though males have both X and Y chromosomes, some of them have only male or only female kids. Why?
Meiotic cell division is also called reductional cell division. Why?
Mitotic cell division is also called equational cell division. Why?
Sexual reproduction is impossible without meiotic cell division. Why?
Meiotic cell division brings variation. How?
Two black guinea pigs mated and the off-springs born were 3 black and 1 white guinea pigs. What is the genotypic ratio?
State any two significances of meiosis cell division.
Explain about monohybrid cross making a filial chart showing the result obtained by cross-pollination followed by self-pollination of the rounded seeded pea plant and wrinkled seeded pea plant. What is the phenotypic ratio in the second filial generation?
What is a gene?
What is a chromosome? Clarify the role of chromosomes in the body of living beings.
Explain the importance of mitotic cell division in the growth and development of the body.
Explain the role of mitosis and meiosis in the reproduction of organisms.
What will happen if meiotic cell division does not occur in the reproductive cell of an organism? Explain.
Clearly explain the role of genes in the transmission of hereditary characteristics in organisms.
How is sex determined in humans? Explain with a chart.
A woman is pregnant. What is her probability of giving birth to a daughter? Write in percent.
A couple gave birth to only a son. Does it mean that the testes of those male-produced sperm share Y-chromosomes only?
Differentiate: Dominant characters and Recessive characters
Differentiate: Phenotype and Genotype
Differentiate: Interbreeding and Crossbreeding
Differentiate: Artificial Insemination and Invitro Fertilization
Differentiate: Tigon and Liger
Children look like their parents, but not exactly the same. Give reason.
Mendel selected pea plants for his experiment. Give reason.
When tall pea plants and dwarf pea plants are cross-pollinated, tall plants are produced in the first filial generation. Give reason.
When self-breeding is done between hybrids, different types of offspring are produced. Give reason.
DNA Testing is a reliable technique for criminal investigation. Explain.
Genetic engineering involves the detailed study of DNA. How?
Offspring produced by cross-breeding may be sterile. Explain.
Special attention should be given to collecting samples for DNA testing. Give reason.
What is genetics?
What is DNA testing? For what purposes is it used?
Give some examples of genetic technology.
Mention the importance of DNA in genetic technology.
Explain the importance of genetic engineering.
What is a monohybrid cross?
Show in the filial chart, the result obtained by cross-pollinating first and then self-pollinating a red flowering pea plant and a white flowering pea plant.
Explain with an example that Mendel's experiment can be done not only in plants but also in animals.
Explain Mendel's law of dominance in heredity.
Explain Mendel's law of purity of gametes in heredity.
Round-seeded pea plants and wrinkle-seeded pea plants are cross-pollinated first and then the offspring obtained are self-pollinated again. The result of the second filial generation is shown in the table below. Now, answer the following questions:
-----------
| R | r
R | RR | Rr
R | Rr | rr
-----------
- What is the ratio fo plants showing dominant and recessive characters?
- Write the genotypic and phenotypic ratio of this generation.
- Among them, which plant is purely round-seeded? Why?
When a cross is made between a black guinea pig and a white guinea pig, the offspring of the first filial generation are all black. Explain why white guinea pigs did not appear in this generation.
A teenage girl who has lost her mental balance became the victim of rape and gave birth to a child. How can the father of the child be detected?
The district animal development centre conducted a camp to fertilize many cows at once. Which technique did that organization adopt at that time? Explain this technique in brief.
Is genetic engineering a boon or a bane for the present era? Give your arguments.
How has AI technology helped to bring happiness to the farmer? Explain.
IVF is proved to be a boon for childless couples. Justify this statement.
What is heredity?
What is the main function of a gene?
Where are genes located?
Who is considered as the father of genetics?
What is dominant characteristic?
What is recessive characteristic?
Define phenotype.
Define genotype.
What is a dihybrid cross? Give one example.
What is a hybrid organism?
Write any two recessive characteristics seen in human beings.
What is variation?
How many characters of pea plant had Mendel selected for his experiment?
How many pairs of chromosomes are there in human somatic cell?
Why did Mendel not select mustard plant for his experiment? Mention any two points.
How do the chordates without vertebral column link the classification with evolution of organism? Mention any two points.
Different types of cell division are shown in the diagram:
- Which of them can form gametes?
- Which of them forms daughter cells having identical characteristics of mother cell?
- Write an importance of figure A.
- Which of them helps to make number of chromosome similar to mother cell in sexual reproduction?
Which of the following is the diploid chromosome number of human being?
Write any two differences between autosome and sex chromosome.
Similar stages of different types of cell division are shown in the diagram. If there were four chromosomes in the mother cells.
- Which of them can form gametes?
- Which of them forms daughter cells having identical characteristics of mother cell?
- Write an importance of figure A.
A fact and two statements related with genetics are given below.
Fact: In vitro fertilization is a process of fertilization where an egg is combined with sperm in a glass vessel and then it is transferred in mother's uterus.
Statements:
- Sperm is not needed for this process
- Surrogate mother can grow the embryo in her uterus.
Write the full form of RNA.
Define monohybrid cross and phenotype.
What is the number of chromosome in reproductive cell of human?
What type of offsprings will be formed in first filial generation when black (Bb) and brown(bb) rabbits are crossed?
What would happen if Mendel used bottle gaurd seeds instead of pea seeds for his experiment? Write any two difficulties.
The given passage was published digitally by Nepal fertility centre on 11 August 2023:
The process begins with ovarian stimulation, where fertility medications are administered to stimulate the ovaries to produce multiple eggs....... Next, the retrieved eggs are fertilized with sperm in a controlled laboratory environment. ........ the most viable ones are selected for transfer into the woman's uterus.
- What type of couples the technology mentioned in the article advantageous for?
- Show the steps of the above process in a flow chart in sequential order.
- Is the technology in access of most of the Nepalese? Explain.
When a red flowered pea plant (RR) crossed with the white flowered pea plant (rr) in F, generation, all plants are found red flowered. What type of character is red?
Genetic technology is boon for human beings, justify this statement in two points.
After the cross-fertilization between long winged (LL) and short winged (ll) drosophila upto 2$^{nd}$ generation were studied. A part of the study is given in the table alongside.
| L | l | |
| L | LL | Ll |
| l | lL | ll |
- What type of characters were there in the parents of the offspring shown in table?
- Write genophytic ratio of this generation?
- In the drosophila having Ll, there are the factors of both the characters but only one character is expressed. Clarify the cause.
- Draw a chart for offspring obtained by crossing between the drosophila of hybrid and the recessive character.
Who is the father of Genetics?
What is the full from of RNA?